Kacchan's parents divorced five years ago and her mother is gone. The father took great care of his only son, Kacchan, but when Kacchan fell ill, he asked for a home-visit nurse. Kacchan, who was hungry for the warmth of his mother, was overjoyed by the gentle visiting nurse. A visiting nurse who likes children gently seduces Ka-chan with her own body... "I'll teach you a very pleasant nursing treatment! ! 』